383 static long copy_arg_from_user(void *karg, void __user *uarg, unsigned int cmd)  in copy_arg_from_user()  argument
386 	    copy_from_user(karg, uarg, _IOC_SIZE(cmd)))  in copy_arg_from_user()
392 static long copy_arg_to_user(void __user *uarg, void *karg, unsigned int cmd)  in copy_arg_to_user()  argument
395 	    copy_to_user(uarg, karg, _IOC_SIZE(cmd)))  in copy_arg_to_user()
421 	long (*arg_from_user)(void *karg, void __user *uarg, unsigned int cmd);
422 	long (*arg_to_user)(void __user *uarg, void *karg, unsigned int cmd);
441 	char __karg[256], *karg = __karg;  in media_device_ioctl()  local
451 		karg = kmalloc(_IOC_SIZE(info->cmd), GFP_KERNEL);  in media_device_ioctl()
452 		if (!karg)  in media_device_ioctl()
457 		ret = info->arg_from_user(karg, arg, cmd);  in media_device_ioctl()
465 	ret = info->fn(dev, karg);  in media_device_ioctl()
471 		ret = info->arg_to_user(arg, karg, cmd);  in media_device_ioctl()
474 	if (karg != __karg)  in media_device_ioctl()
475 		kfree(karg);  in media_device_ioctl()